Pump



A. WICHA Jan. 8, 1935.

PUMP

Filed Feb. 13, 19:53

5 Sheets-Sheet l INVENTOR @Lo/s I/V/cf/A ATTORNEY Jan. 8, 1935.

A. wlcHA PUMP Filed Feb. 13, 1933 5 Sheets-Sheet 2 ATTORNEY A. WICHA Jan. 8, 1.935.

PUMP

5 sheets-sheetl 4' Filed Feb. 13, 1953 ATTORNE Jan. 1935.' A W|CHA 1,987,315

ATTORNEY Patented Jan. 8, 1935 i UNITED STATES 'PATENT OFFICE New York Application' Februaryr13, 1933, Serial No. 656,641'` 1s Claims. @Lice-133) This invention relates to fluid actuating devices and particularly relates to pumps for liquids and gases and to compressors for gases and vapors and other similar apparatus.

Although the present invention will be particularly described in connection with liquid pumps it is also to be understood that it may belemployed with sphericalvengines or other apparatus where fluid or liquid is passed into thecasing to cause a shaft or mechanism to be actuated, the fiow of liquid or iiuid being the source of energy.

It is an object vof the present invention to provide a spherical engine and particularly a durable pump which may be operated directly from Aa rotating shaft to give a continuous feed and/or to `exert a continuous suction, which will be compact,

light in weight yand relatively inexpensive' and which will have very few parts and not require costly lubricating installations or be readily subject to disadjustments.

Among the other objects of the present invention are to provide a fluid actuator or a pump,

which, although it is directly driven from a rotat.- ing shaft, has a very high mechanical efficiency and will have a metering action; which maybe driven over a wide range of rotational speeds; which will be devoid of valves; lwhich may be readily reversed; and which will produce both a substantially continuous suction at its inlet and a substantially continuous pressure atits outlet, all without the use` of complicated or auxiliary mechanical apparatus, such` as air bells, resilient diaphragm devices, and so forth.y I

Other objects will be sufciently obvious and will appear during the course of thefollowing specification.

In accomplishing the objects above 'stated the applicant has devised an altogether novel type of pump consisting of a casing, the interior chamber of which may take the form of a spherical section or segment with a peripheral sphericalv surface and flat or conical side walls; an oscillating im'- -peller disc,fthe oscillating movement of v which takes place both horizontally and vertically within said casing about a fixed center; a driveA shaft which has an eccentric driving bearing for the impeller disc causing said impeller to undergo said movement within the casing resulting in substantially continuous movement of fluid from the inlet to the outlet; and a guide member mounted in said casing and Yreceived in a slot or socket in one edge of the impeller disc preventing ,the impeller disc from rotating While permitting relative pivotal and sliding movementwhereby saidimpellerwill partakeA ofsaid oscillating movement both laterally and vertically.

- The impellerdisc, the'sides of which may be at or` outwardly convergingpor-diverging, closely confprmsto thesphericalinterior surface of the interior chamber along its entire periphery and converges toward thev side Iwalls'of the chamber forming sealing surfaces or spaces, diametrically oppositely disposed o n `said walls thereof. As a result thejnteriorchamber -will rbe divided into .two compartments which will-be separated from leach other by the impeller. I 'I he oscillating movement of the disc willcontinuously rotate these compartments within the casing.

f The guide memberis positioned between the in let and outletports of the 4pump and constructed orassociated with other elements, so as to prevent direct communication therebetween. As ythe compartments pass across the guide member, they will be divided thereby. Duringthis passage they will decrease in volume on thev approach vor outlet side of the guide member, compressing and/or expelling fluid through the outlet port; and at the sametimethey will increase in volume jon the removal or inlet side of the guide member, sucking fluid in through the inlet port.

`Whenthe pump as above described is to be made of large capacity, it has been found that the impellervdisk often is of considerableweight and it is a further particular `object of the present invention to provide an impeller disk for high jpelling surfaces.v To reduce the weight only a relatively thinlayer or wall ofmetal isv left in the rbackof the impelling surfaceof the disc, and the interior of the-,impeller disc is hollow. When making the impeller disc of hollow construction,

as describedit is necessary to provide means to preventthe fluid'or liquid by-passing through the hollow spaces inside the hollow disc from the ,inlet to the outlet, and at all times the open space inside of theimpeller disc must be prevented from communicating with either the inlet port or the r The above and other objectswill appear more clearly from the following detailed description, when taken in connection with the accompanying drawings, which illustrate several preferred embodirnents of the inventive idea,

impeller disc with the guide member in position;l

Fig. 5 being a perspective View of the impeller disc at a different angle; Fig. 6 being a side elevational' view; Fig. 7 being a bottom view ofthe impeller disc; Fig. 8 being an exploded; perspective viewfof the guide with its wing elements; and Fig. 9 being an axial elevation of the sliaft;l y

Figs. 10 to 26 are diagrammatic views illustrating the operation of the pump orl fluid actuating device of Figs. 1 to 3; and l Figs. 27 and 28-are side sectional views`v of two other impeller-shaftcombinations; The pump as shown in Figs. 1 to 3'- of the drawings is provided with va casing C, a` driving shaft 11, an impeller disc l21 and a guide member 25. Y f'`- The casing C (Figs. 1- to 3) is yformed of--two half sections 7 and 8 provided with integral flanges 50 and with integral webs 52, the flanges and webs on the opposite-halvesbeing connected together by the bolts "51. The casing sections 50 are also provided with a support plate 53, which is preferably integrally associated Iwith the lower part ofv thefcasing C'. I f The inlet andoutletports 9and l'communicate with the interior-"pump chamber I of' the casing and they are formed half in each section 7 and 8 so that when these sectionsarebolted together the complete port will beV formed.

TheA interior chamber I is providedwithinwardly converging frustro-conical` side` wallsf54 and a continuousr peripheral spherical surface In the form of the invention shown (see Figs. 1 and 3 and also Figs. 14, 18, 22l and 26),y lthe inlet port and the outlet port intersect the peripheral spherical surfaceV 55 Vto form! inlet and outlet ports 56 and 57; As indicated, both of the ports 9 and 10'decrease in ow area as they approach the-interior chamber I, the inlet port 9 decreasing at amore rapidrate-thanthe outlet port 10 with the result that the area4 56 of the inlet port at the peripheral surface` 55 will be less than the-area 57of the outlet port 10.

The one side of the casing is provided 'with a boss 58 having a central opening into which is fitted the bearing sleeve 12. This lbearing sleeve receives the shaft 11. Within thechamber I casing C, the shaft 11 carries-'the'ball'element B. The lateral surfaces 19 and 17l of theball B bear within the cavities 59 and 60 formed in the interiorside walls 54 ofthe casing C. YThe ball element B isralsoprovided withr a thrust bearing surface 16 which contacts with the flange 62 at the inner end of the bearingsleeve The ball-element Bis divided into two spherilcal conical sections 13 andY 14 (see Figs. y2, 3 and 9) by a central slot 68 which is positioned obliquely to the axis of the shaft 11 and is provided with inwardly converging side bearing' surffaces 18 and 2 0 and with theinsidecylindrical bearing surface 15.'l The side bearing surfaces 18 and 20 are ofv` truncated conicalform and converge toward the center point 82. The horizontal axis of the shaft 11 passes through this center point 82.

The impeller disc 21 is shown assembled with the pump in Figs. 1, 2 and 3 and is shown removed from the pump in Figs. 4, 5, 6 and 7. The impeller disc 21 is carried and caused to undergo an oscillating movement by the slot 63 of the shaft 11` (see Fig. 9). f

The piston is formed of two outwardly diverging conical shaped plates or walls 22 and 23. T hese plates or walls 22 and 23 converge together toward the center point 82 and are joined together short; of said center point by the annular peripheral wall 24. The inner converging sides of the plates 22 and 23 adjacent to the `conical surfaces 18 and 20 of the shaft 1l are depressed Vas indicated at 66 in Fig. 5. These depressedportions receive the bearing insert 65 which takes the shape of the side walls 22 and 23 ofthe impeller: The'bear-ing insert 65 extends over the inside peripheral surface 24 which bears against they cylindrical obliquev surface 15 of the shaft (Fig. 9).

When the impeller is Oscillated duei tothe eccentric movement lof the slot 63 upon rotation of thefshaft l1,y it is prevented from rotating by th'efguide member 25 which slidesin the trans- 'verse' slot 27 extending across the bottom por- Aagainst rotation by the key 71.

'The inner surface 73 of the conical roller and the outer surface 74 are both4 spherical. The outer surface 74 contacts closelyA withthe peripheralsurface 55 of thechamber I while the .innerA spherical' surface 73 ofthe guide member -25 ridesiupon the bottomspherical surface A25' of-f the slot 27 in the impeller 21.

`out of the slotl 27. AIn this position the inner spherical surfaces73 of the -roller 68 will ride over the sphericalsurfaces 16 and 19 of the ball element B of the shaft 11.

I As indicated in Figures 1, 2, 5, 6 and 7 the sides andv bottom of the slot 27 in the edge of the impeller 21 will be formed by a wall or plate 100, preferably ofthe same thickness as the side walls 22and 23.

To preventcommunication between the inlet and. outlet portsdirectly across the bottom of the casingv I past the slot 27, the xed wings or plates 32 and 33 are` provided (see Figs. 2, 3 and 8). These wings 32fand 33 extend from the side ofthe roller 68 of the guide 25 to the conical side walls 54 of the casing.

The inside adjacent faces 101 and 102 are shaped conically so as to contact closely and in a. liquid-tight fashion with the sides of the roller 6,8whi1e the outside edge faces 103 and lofi are also conically surfaced so as to 'contact with the conical side walls 54 of the chamber Iv (see particularly Fig. 8) The inside edge faces 105 and 106 of the plates 32 and 33 are of spherical shape so as to contact closely with the bottcm-25foff`the'slot 27- in the impeller disc 21 The stud 26 is received in a 5:.

i",tzs"-'',:?l1'5 tively," in side, front,top andbottcm views, the imp ller21 will divide the interior I of the casing -C into twocompartments 92 and 93 which are symmetrically disposed in respectl to the center point 82 of the pump. In Figs. 11, 15, 19 and` and/or with `the spherical surfaces '17* and 19 of the ball element B. Y

The wing or plate 32 is provided with an extension 108'which ts into a slot 109 in the lower portion of the casing (see Figs. 2 and 8) while the wing 33 is provided with anA integral stud 34 which is received in the cylindrical opening'109 in the lower side of the casing'C and held agains rotation by the key 110.

The metal wall forming the bottom Vand sides of the slot 27 in the impeller disc 21 is provided with the laterally extending wings 28 and 29 which are of such size as to always-cover the inlet and outlet port openings 56 and 57 (see particularly Figs. 14, 18, 22 and 26) and prevent flow of liquid from the inlet port to the outlet port 'in the space between the side walls 22 and 23 of the impeller. The outside surfaces of the wings 28 and 29, and also the edges 85 and 86 of the plates 22 and 23, are sphericalso a's to contact closely with the peripheral spherical 4sl'irface 55 of the interior chamber I (see Figs. 1 to 3).

As indicated in Figs. 1 3, 5 and 6, the impeller 21 is formed of two half sections, an upper section and a lower section 151 carrying a slot 27, which half sections are provided with the contacting webs 30 which lare bolted together at 31.

The operation of the pump is most conveniently shown from the diagrammatic views, Figs. l0 to 26. Fig. 10 diagrammatically illustrates the turning of the impeller disk 21, and Figs. 11 to 26 show side, front, top and bottom views of the impeller disk 21 and the guide member 25 in each of the positions I, II, III and IV, designated.

Figs. 11, 12, 13, and 14 are, respectively, side, front, top and bottom views of the impeller 21 and guide member 25 in position I; Figs. 15, 16, 17 and 18 are corresponding views in position II; Figs. 19, 20, 21 and 22 are corresponding views in position III; and Figs. 23, 24, 25 and 26 are corresponding views in position IV.

When the shaft 1l rotates, the impeller 21 will be rcaused to sweep backwardly and forwardly both horizontally and vertically in the interior chamber I with the result that said impellerwill partake of an oscillation.

At the same time the axes about which the impeller tends to swing will also tend to rotate about the xed common center point 82 of the casing, impeller and the shaft. The horizontal axis `of the impeller will swing in a horizontal plane and the vertical axis will swing in a vertical plane. This last-mentioned vertical plane will also tend to rotate or oscillate about the central vertical axis of the casing as indicated in'Figs. 14,18, -22 and 26.

As a result of this movement all points on the periphery of the impeller 21 removed from the horizontal axis will tend to move along lemniscate curves which become of greater latitude as the point becomes elevated or depressed and removed from the center point 82 so that points at the top and bottom of the impeller 21 will move in lemniscate curves of maximum amplitude. These curves will lay a spherical surface described upon a radius equal to the distance of the point from the center point 82. Because of this movement no substantial acceleration or deceleration forces will rbe exerted upon the mass of the'impeller disk, with the result that the abrupt changes in acceleration characteristics ofthe reciprocating piston pump are altogether eliminated. Y y

As indicated in-`Figs4 1l, 12, 13and'14,respec 23 the compartment 92 is to the right of the impeller, while the compartment 93 is to the left of the impeller. In Figs.12, 16, 20, 24, the compartment 92 is in front of the impeller while the compartment 93 is to the rear of the impeller. InuFigsrlS, 17, 21and 25, the compartment 92 is to the right of the impeller, while the compartment 93 is to the left of the impeller. In Figs. 14," 18, 22 and 26 vthe compartment 93 is to the left of the impeller, while the compartment '92 is to the right of the impeller.

It is apparent 4that/these compartments, due to the oscillation movement of theimpeller 21, are causedto rotatewithin the interior chamber I of the casing C.-l

' During rotation, these compartments 92 and 93 are successively opened and closed to the inlet 56 and then to the outlet 57 so that fluid or liquid which is received through the inlet 56 will be carried to the outlet 57. These compartments 92 and 93 will transfer liquid or fluid through the upper half of the casing from the inlet 56 to the outlet 57. Transfer of uid or liquid reversely from the outlet to the inlet in the lower half of the chamber I is prevented by the guide 25 and vits wings 32 and 33.

It will' be noted in Figs. 14, 148, 22 and 26, that Y vthe chambers '92 Vand 93 must move through the guide, with the guide 25 and wings 32 and 33 preventing communication from one side of the chamber to the other as it is moving through said guide.`

As shown-"in Fig. 14 the compartment 93 is movingdownwardly and is bisected by the wing 32, while in Fig. 18 both compartments are divided by the wings 32 and 33. In Fig. 22 only the compartment 92 isdivided by the wing 33 and as the compartment continues to move downwardly the greater part'of its volume also moves below the wing 33 with a corresponding decrease of volume above the wing 33.

As the compartments 92 and 93 move through the wings 32 and33 therefore, the volume of the subdivision on the outlet side 57 of the guide 25 decreases .with the result that the liquid or fluid is then forced or squeezed out through said outlet 57. At the same time the volume of the compartment on the inlet side of the guide 25 increases with the result that the liquid is sucked Ain through the inlet 56 to ll the increasing volume on that side. Itfwill thus be apparent that each `compartment92 and 93 has inlet and outlet portions or subdivisions of progressively changing volume, the volume ysuccessively increasing in communication with the inlet 11, being cut olf from the inlet after it has been lled, then achieving communication with the outlet 57 and decreasing in volume while in communication with the outlet until all of the liquid or fluid has then been 'forced-out throughl said outlet.

The inlet and outlet subdivision of each compartment 92 and 93 in addition to being separated by the wings 32 and 33 are also separated by the terior I in the same direction as the shaft. This area or line of convergenceis also indicated at 94 in Figs-,11, 17, 18f19525and26i.; The corresponding linel or area of ,convergenceafon the' compartiment 93 is indicated at 95-in.;,Figs-.11, 17,118.- 19, 25 and 26. It will be noted that .the area orline 95 is always` symmetrically disposed: diametrically opposite to the area. or linev94 ,inrespect toithe center point 82.v i l In Figs.'1-1,.12,13 and 14; the compartment 92 has just been iilled and -is ,beingfl cut offjfrom-the inlet 56 bysphericalp1ate;element 28- of', the.` impeller, andis just about to .be opened-to the` out'- let 57 by the spherical,plategelement 29.. The sphericalA plate elements 28 and 29 together with the 'contact areas-94 and `95-.function as inlet vand outlet valves sincethey serve toopen andlcut orf from the inlet 56 andtoopen and cut off'. the'outlet 57 to the compartments92and93. l

In the, position. shovvninA Figs...11to 14, the line of contact 942 coincides'with the contact of the Wing 33 with the side Wall 54l of the interior I soA that the compartment; 92 in.this= position is not divided nor 'lisg it decreasedgin volume by the volume of the Wing. To reach this position the compartment; 92hasvr been increased in. volume while in communicationV with the-inlet -56` onthe inlet side of the guide-275,' With-the result; that an amount of uid or,y liquid equalfiniamount tothe maximumv volume of the compartment 92 has been sucked'oridrawn.thereinto.

Then as theshaft 11"` continues tomoveqfrom the position I of Figs. 11 to 14to thev position II of Figs. 15 to18,'the inlet valveplate28 of' the impeller 21 will reverse `itsrmovement' and-'start to swing to the` right as 'indicatedinFig 18, while the outlet valve .plate 29.-.Wi1l.sweep across; the outlet portA 57 from .the position =of.Fig. 14 to the position of Fig. 18, opening the outlet Iport 57 to the compartmenty 92. this-visoccurring,jthe compartment 92; is :being movedthroughi the wing 33 so that asit isopening` to theinletg; liquidfor iiuid being sucked-'into the openingy portion on the inletside up tothe line94 `(seezFig. 16) ,'.While due to the decreasingvolumeofthe portion of the compartment 92 onvthe outlet side1oi` the wing-33 a correspondingV amount of liquidand uid-is -being forced outwardly through said outlet 57.`

In the positionof'Figs. 19.- to 22;. the compartment 92 is-being lbisected by the wing '33.A and it is open on -halttotheinl'et 56*1 and one-half tothe outlet 57r with the Volume communication with the inlet increasing Whilethevolume with the out'- let is decreasinggf When the pump as above'described` is torbe` made of large capacity,it has'xbeennfound that thefimpeller disc often', is of.' .'considerablef weightr andfit is a further. particular object;.of'the.present in,- vention to providean impeller. disc fonhigh capacity pumps Whichwillhave.I a`r relatively.: light weight and which Will at the.- samexftime` function eiliciently to actuate the fluid or liquidinthe` desired fashion from the inlet to the.` outlet. In Figs. 23to'26the`areahas-.reached'the posi?- ticn 94 in Fig. 24. f The major portionoff'the volurne of" compartment 92;has 'beenfopened in respect to the inlet 56v-and-With the llast portionsof liquid contained in saidfcompartment on` tlie outlet side being forcedioutthrough said outlet 57.

The valve plate 29 (see Fi`g.`26) is swinging to the right to out Voff the outlet'port57." The Valve plate 29 is swinging overftor cutfoi inletvport 56 after the compartment. 92has 4been .lledandf the Contact area 94l has .passed thel ,wing/33; `The compartment 92 is yiii-st 'closed.a1id' then opened -;an d 86 and across the lines of areas 94 and 95,

the combinedvolume of the chambers 92 and 93 being; transferredfrom theinlet to the outlet once for each complete revolution of theshaft. Theconverging. offthe intake port 9 and the d i- Vergingof the outlet port 10 are regulated so that the liquid.v o r fluid will flow into and from the pumpingycompartments 92 and 93. through the l openings- 56- and57 with a minimum of turbulence. orderytoenable'the iluid: orliquidvto pass intoA and out -of the casing at a constant velocity without. excessive turbulence the cross sectional area of 4theinlet and outlet ports 56 and 57. opened for the, entry or exit of fluid or liquid must be equal to or greater than the maximum transverse area of the pumping compartments 1 52 and.153 -whichf-is-indicatedat 36 in Fig. 2.

The .modification illustrated in Fig.v 27 comprises an annular. piston 37, the impeller portion formed by converging. 'walls 38 and 39. This ,V--shaped section is carried by ball bearings-40. The spherical support for. the piston consists of two halves-41 and 42 4which are connected together by akeymember 43. The member 41 is an integral-part of the shaft end 44, Whilel the inembe 42 is `integral,-Withthe shaft end 45. y The modification illustrated in Fig. 28 is similarto.` that shown in Fig. 27 and differs from the latter merely in, the substitution of the roller bearingsv 46 Ifor they-ball bearings 40 shown in Fig. 217.` f t y Inl considering the operationof theiiuid actuating device ofthe present invention, which operation has been diagrammatically illustrated and described inconnection with Figs. 10to 26, it isr'to benotedthat the impeller 21 in the course of its'oscillatingmovement causes a displacement Y' of fluid both when it moves .toward the wall of the -casingC andwhen it moves away from the wall of the casing C. In the former case the uid is forced out of the casing through the outlet or isforced from one partzof the interior chamber of the casing toanother part of theinterior chamber of the casing.

, Since the entire. sidewall or side surface of the inventiondiifers substantially from the displacement actionpf; the piston of a=reciprocating pump in that whereas the motiQn of the reciprocating piston causes a linear movement of iluid to` the end of a; cylinderfin thel device of the present stantially constant since it will be equivalent'to the volume of the interior chamber minus the volume of the impeller Aandthe `volmue' of the guide with its adjuncts. As previously described, the impeller will divide thechamber into two wedge-like compartments which, although they are of substantially constantvolume throughout.

operation oi the device (except for the volume of the guide or its adjunctswhich may project into them) they nevertheless will have portions of varying volumetric capacity in communication with the inlet and outlet, the .volume in communication with the inlet increasing while the volume in communication with the outlet is decreasing.

From this point of -view it may be considered l that theguide is a iixedrluid-impelling device one after the other without the abrupt reversals as occur in all reciprocating pumps.

It is apparent from theforegoing description;

of the operation, that the shaft ymay vberotated in either direction, and that asa result of each reverse rotation the inlets and outlets will b e similarly reversed. The discharge output of the device is proportional to the'speed of rotation of the shaft, while the head or height of delivery is independent `of the speed of rotation.

The present application is a continuation in part of my copending application Serial No. 636,- 295, filed Oct. 5, 1932. Y

The matter shown and described in the present application but not claimed herein is covered in -my copending applications Serial Nos. 656,637; 656,638; 656,639; 656,640; filed respectively Feb. 13, 1933; 673,244 and 673,245, filed may 27, 1933 and-696,944, led Nov. 7, 1933. r'I'he guide and separating wall arrangement of the present application, as well asthe impeller construction, may be utilized in the spherical ma-v chines of said copending applications. The guide may be used with other shapes vof impeller, for example as the converging impeller shown in application #656,637, in a gas or vapor compressor such as shown in #656,638, with an internal lubrication system such as shown in.#656,640, and in a vacuum pump such as shown in #656,642. The novel features of the present invention may also be utilized yin connection with the separated guide and separating' wall, as disclosed vin #673,- 244 and #673,245, and also in connection with the peripheral and side surface or space. packing or sealing disclosed in #696,944, which last-mentioned application also discloses rotating side walls.

What Ais claimed is: .f

1. Ina iiuid actuating device, a casing having afsphe'rical interior chamber with inlet and 'outlet ports, an impeller therein dividing said chamber .into a plurality of separated compartments, a drive shaft with an eccentric cam portion for causing'said impeller to oscillate within the chamber, and a guide member connected to said impeller and to said casing for preventing rotation of saidimpeller .while permitting it to oscillate whereby said compartments will rotate and transfer of 'fluid from said inlet to said outlet will result, said impeller being of hollow form and comprising outwardlydiverging walls, said interior chamberv being' provided with conical sides and the exterior sides of said impeller moving circularly past the conical sides of said chamber, said impeller being provided with interior closure means extending between said side walls, said closure means extending to the periphery of said side walls of said impeller, whereby the impelling action of said impeller is restricted toy the exterior sides of said impeller.

.2. In aiiuid actuating device, a casing having a spherical interior chamber with inlet and outlet ports, an impeller therein dividing said chamber into a plurality of separated compartments, a drive shaft with an eccentric cam portion for causing said impeller to oscillate within the chamber, and a guide ,member connected to said impeller and to saiol casing for preventing rotation of said impeller while permitting it to oscillate whereby said compartments will rotate and trans-y fer of fluid from said inlet to said outlet will result, said impeller beingvof, hollow form and comprising inwardly converging walls having conical impelling surfaces the apexes of which meet at the center point of the impeller, said interior chamber being providedwith conical sides and the exterior sides of said impeller moving cir.- cularly past the conical sides of said chamber, said impeller, being provided with interior closure means extending between said side walls, said closure means extending to the periphery of v`'said side walls of said impeller, whereby the impelling action of said impeller is restricted to the exterior sides of said impeller,

3. In a fluid actuating device, a casing having a spherical interior chamber with inlet and outlet ports', an impellertherein dividing said chamber into a plurality of separated compartments, a drive shaft with an eccentric cam portion for causing said impeller to oscillate within the charnber, and a guide member connected to said impeller and to said casing for preventing rotation ofsaid impeller while permitting it to oscillate whereby said compartments will rotate and transfer of fluid from said inlet to said outlet will result, said impeller being of hollow form and having a-slot and partial peripheral walls which project over said ports, said interior chamber being provided with conical sides and the exterior sides of said impeller moving circularly past the conical sides of said chamber, said impeller being so constructed as to prevent circulation of uid through the hollow interior thereof, whereby the impelling action of said impeller is restricted to the exterior sides of said impeller.

4. VIn a uid actuating device, a casing having a spherical interior chamber with inlet and outlet ports, an impeller therein dividing said chamber into a plurality of separated compartments, a drive shaft with an eccentric cam portion for 'causing said, impeller to oscillate within the chamber, and a guide member connected tosaid impeller and to said casing forpreventing rotation of said impeller while permitting 'it to oscillate whereby said compartments will rotate and transfer of uid from said 'inlet'to said outletA will result, said impeller'being of hollow 'form and having loutwardly dii/:erging side Walls, the maximum cross-sectional area ofI said -compartmentsV being about the same as the available impeller.

5. In a fluid actuating device, ra casing havingy a spherical interiorchamber with inlet and outlet ports, an impeller therein ,dividing ksaid .chamber into` a plurality of separated .compartn'ienta` a drive shaft with an eccentric cam .portion for causing said impeller to oscillate within the chamber, and a Aguide memberconnected to said impeller and to said casing 4for preventing rotation of said impeller while permittingjit tooscillate whereby said V,compartments lwill rotate and transfer of uid from said inlet to said outlet will result, said cam portionbeing formed of an obliquely slotted ball,'the sides of Vsaid'slotlbeing of conicalv contour, said' Aball consisting of lseparable conical sections and said impeller being of hollow construction and Yhaving inwardly `converging walls, said interior chamber `being i.provided with conical sides andthe *exterior sidesgof said impeller moving circularly past the conical sides of said chamber, said impeller being so `constructedasto prevent circulation of .fluid through the hollow interior thereof, whereby the impelling action of said impeller is'restricjted to the exterior sides of saidimpeller.v

6. In a fluid actuating devicea casing having a sphericalinteriorchamber with'inlet and outlet ports, an impeller-,therein .dividing said chamberA into a plurality of, separatedzcompartments, "a drive shaft with `an V'eccentricjcarn `portion for causing said 'impeller to 4oscillate within the chamber, anda guide `memberconnected*to said impellerand to said casing for preventing rotation of said impeller while permitting it to oscillate whereby said `compartments will rotate and transferk of fluid from said inletk to said outlet will result, saidl shaft cam portion including a grooved spherical element consisting of separable sections and said Aimpeller .being` of hollow yconstruction and having inwardly converging walls,

and anti-friction bearings Iinterposed between said impeller and said cam portion, said interior chamber being providedwith conical sides and the exterior sides of said limpeller Vmovi-ng Ycircularly past the conical sides kof said chamber,

said impeller being so constructed as to prevent' circulation of fluid through thehollow IinteriorV esnsr surface .of "the, chamber 1'and'having fluid actuatingside'wallswhich oppositely approach and diverge 'from the sidesofA thechamber, so as to form "semi-circular wedge-like 'iiuid conveying compartments 'to ,be rotated -from the inletk to the outlet ports, separating means in said casing transversely Iocated'between the inlet and outlet ports, said separating means preventing direct communication between the inlet and outlet ports, the .movement of said impeller causing a movement of fluid from 'th'inlet port'into the outlet port through the chamber, Asaid impeller being provided with a transverse opening to receive said means, and a central 'oblique cam element for cooperating with said impeller, holding it in relatively .oblique 'position Awithin said chamber andffor causing-the side walls of'said impeller and the .sides of the chamber to move over one another within said chamber and to cause 'the peripheral outside surface 'of the impeller to oscillate relatively 'laterally .across said chamber, said impeller having 4outwardly vdiverging separated side walls,y said impeller 'being `provided with a fragmentary-peripheral wall which extends from thejtransverse opening in'said'mpeller sufficiently todcover said inlet and outlet ports during the entire oscillating movement of said impeller.

BInauid-actuating device, a casing having a fluid actuating chamber with spaced sides and spherical 'peripheral surfaces, said chamber being provided with inlet and outlet ports, and being provided. with a ycentral shaft connection, aniimpellerfmember located obliquely across said chamber Ahaving diametrica'lly opposite linear contacts and divergent Vportions sofas to form a plurality `of' reversely congruent semi-circular wedge-like. actuating compartments, the outside portion'of said impeller having aspherical surface located in yclose adjuxtaposition to the sphericalsurface-of `the chamber, a transverse separating means between said inlet and outletvports received in a slot in said impeller, lsaid shaft carrying a; central l'camelement cooperating with said, impellertohold Aitin relatively oblique position `.Within .said `chamber land to cause its side walls andthe sides of the chamber to Vmove relatively overone'another andthe spherical outside surface 'of 'the impeller' to oscillate relatively latorally-*across said spherical Vperipheral surface, said impeller having outwardly diverging separated side walls, sai-dimpeller 'being provided with transverse walls extendingbetween said side walls tothe peripheral surface `of said impeller, said transverse wallsbeing substantially removed from said slot.

9; In a spherical machine, a casing having an interior fluid receiving chamber with spaced sides and-spherical peripheral surfaces, said chamber being provided with inlet and outlet ports, an impeller located within said -chamber having a peripheral spherical outside surface `located in close yadjuxtapesition to `the peripheral surface ofthe chamber and' having fluid actuating .side walls which loppositely approach and diverge from the sides .of fthe' chamber, so `as to form semicircular wedge-like .fluid conveying compartments:

to be .rotated :from kthe inlet `.to the outlet ports, separating means in said casing transversely located between the inlet and .outlet ports, Asaid separating means preventing Vdirect communication `betweenthe inlet and outlet-ports, the movement of said impeller causing ,a movement of fluidfrom the inlet .port vinto the outlet port through the chamber, said impeller 'being provided with a transverse opening to receive said 10. In a lspherical machine, a casing havingy an interior fluid receiving chamber with spaced sides and spherical peripheral surfaces, said chamber being provided with inlet and outletl portsan impeller located within said chamber having a peripherall spherical outside surface located in close adjuxtaposition to the peripheral Y surface of the chamber and having uid actuating side ywalls which oppositely approach and diverge from'the sides of the chamber, so as to form semi-circular wedge-like fluid conveying compartments to `be rotated' from the inlet to the outlet ports, separating means in said casing transversely'located between the inlet and outlet ports, said separating means preventing direct communicationlbetween the inlet and outlet ports, the movement of said impeller causing a'movement of fluidfrom the inlet port into the outlet port through the chamber,- -said impeller being provided withr a transverse opening to receive said means, anda central oblique cam element for cooperating with saidv impeller, holding it in relatively oblique position `within said chamber and for causingvthe side walls of said impeller and the sides of the charr'iberto move over one another Within said chamber and to cause the peripheral 'outside surface of the'impeller to oscillate relativelylaterally acrossV saidchamber,

said impeller having A.outwardly diverging sepa'-V rated side walls; the space betweenthe periphery of said separated side walls being covered at said transverse opening and fora suiicientextent on each side of said transverse opening to cover both` inlet and outlet ports throughout the oscillation of said' impeller.

11. In a spherical machine, a casing having a fluid-receiving chamber with spaced sides and spherical peripheral surfaces, said chamber being provided with inlet and outlet ports, and being provided with a central shaft connection, an imf peller member located obliquely across said chamber to form ajpluralityf of reversely congruent semi-circular wedge-like actuating compartments,'the outside portion-of said impeller having spherical 'surfaces located in close ad# juxtaposition to the spherical surface of the chamber, a transverse separating means between said inlet and outlet ports received in a slot in said impeller, said shaft carrying a central cam element cooperating with said impeller to hold it in relatively oblique position within said chamber and to cause its side walls and the sides of the chamber to move relatively over one another and the spherical outside surface of the impeller to oscillate relatively laterally across said spherical peripheral surface, said impeller being formed of two discs centrally joined by a cylindrical member, the space between said discs being peripherally covered at said slot in said impeller.

l2. In a spherical machine, a casing having a huid-receiving chamber with spaced sides and spherical peripheral surfaces, said chamber being provided with inlet and outlet ports, and being provided with 'a central 4shaft connection, an. impeller Vmember located obliquely .across said chamber to form a plurality of reversely congruent semi-circular wedge-like actuating compartments, the outside portion of said impeller having spherical surface located in close adjuxtaposition to the spherical surface of the chamber, a rtransverse separating means between said inlet and outlet ports received in a slot in said impeller, said shaft carrying a central cam element cooperating with said impeller to hold it in relatively oblique positiontwithin saidl chamber and to causelitsi side walls and the sides of the chamber to move relatively over one lanother and the spherical outside surface of the impeller to oscillate relatively laterally across said spherical peripheral surface, said impeller being formed 4loy .two separated discs centrally lconnectedby a cylindrical member, the space between said discs being covered 4bya Iwall at said slot and transverse members extending between said discs substantially removed from said slot, whereby the passage of iiuid from the inlet to the outlet ports in the space between said discs is prevented.

13. In a sphericalmachine, a casingrhaving a fluid-receiving chamber with spaced sides and spherical peripheral surfaces, said chamber being provided with inlet'and outlet ports, and being provided with va central shaft connection, an impeller member locatedobliquely across said chamber to. form a"plurality` of. reversely congruent semi-circular ,wedge-likeq `actuating compartments, the outsideportion of `said impeller having'a spherical surfacelo'cated in close adjuxtaposition to the-,spherical surface of the chamber, a" transverse separating means between said inlet and outlet ports received in: a slot in said impeller, saidshaft carrying a central cam element cooperating with said 'impeller to hold it in relatively oblique position within said chamber and to Icause vits Vside ,walls and the sides of the chamber to move relatively over one another and the spherical outside surface of the impeller to oscillate relatively laterallyacross said spherical peripheral surface, said ,central cam element including a grooved spherical element consisting.

of separable sections, and anti-friction bearings interposed between said impeller and said cam portion,y said vimpeller member being of hollow construction'and the hollow interior of said impeller beingso enclosed at the exterior of the impeller asfto prevent communication between said portsgand to prevent liquid communication between'said ports and said hollow interior, and said compartments` extending between the exterior surfaces ofthe impeller member and the spaced sides, the impelling `action. of said irnpeller being restricted to the-exterior side walls of said'impeller.;v f y l 14. In a spherical machine, a casing having a fluid-receiving chamber `with spaced sides and spherical peripheralgsurfaces, said chamber being provided with inletandl outletgports,l and being provided with a central shaft connection, an impeller member located obliquely across said chamber to form a plurality of reversely congruent semi-circular wedge-like actuating compartments, the outside portion of said impeller having a spherical surface located in close adjuxtaposition to the spherical surface of the chamber, a transverse separating means between said inlet and outlet ports received in a slot in said impeller, said shaft carrying a central cam element cooperating with said impeller to hold it in relatively oblique position within said chamber and' to causel its iside lwalls' #and sthe 'sides off'the j chamber toi move `relatively over one anotherfand the spherical outside surfacelof the impellerfto oscillate relatively llaterally across `said spherical peripheral surface,'saidcentral cam element` consisting of two spherical elements, theraxes.- .of

which `are oblique to Ythe'axesxofxsaid shaft *andI the bases Aof which "consist of spherical surfaces and are rigidly connected to said shafts,:one of.V

said spherical elements being lprovided. :with a elements'together. I.

15. In a `spherical `machine,a casingy having a huid-receiving.' chamberwith spaced .sides Aand spherical .peripheral surfaces, said-chamber be ing providedwith inlet and outlet sports, an'dbeing provided with .a vcentralvshaft y' connection, an impeller member located obliquely across said chamber to form a..plurality Iof ,reverselyrcongruent semi-circular wedge-like: actuating compartmentsythe outside portionfof said .impeller having spherical surface located `n close adjuxtaposition to the spherical surfaceeof ithe chamber, a transverse .separating means between said inlet and outlet `ports received :in 'a' slot vin.-said impeller, said shaft carrying a central'carn--ele'-V ment cooperating withrsaid -impeller'to fhold. lit, in relatively oblique position-within said cham` ber and to cause 'its .side Walls .and 'the"sides of the chamber to move relatively 'over one 4another and the spherical outside surface of lthe .impeller4 to oscillate relatively laterally Vacross said 'spherical peripheral surface, said Acentral camfeIement consisting of separable sections, one 'of whichs` provided with a socket .and-theother of which. is provided with anipple tting into said socket,

said nipple carrying anti-frictionlbearings interposed between said impeller'andfsaid cam por-.gv

tion.

16. In a'spherical machine, acasinghavlng ta fluid-receiving chamber with spaced sides 'and spherical peripheral surfaces, said chamber be-l ing providedwith inlet and outlet ports, and' being provided with a central shaft connection, an impeller member located obliquely across said chamber to form a plurality of'reverselycongruent semi-circular wedge-like actuation' corri-2v partments, the outside portion' of' said #impeller-f having a spherical surface located in fclosead# juxtaposition to the sphericalsurface of the chamber, -a transverse separating means-between said inlet and outlet portsV received.` in 'al slot in said impeller, said shaft carrying a `central cam element cooperating with said impeller to hold it in' relativelyoblique position within said vchamber and to cause its side walls andthe sides of the 'chamber to mo'verelatively over one .another and the spherical'outside -surfaceof .the impeller to oscillate relativelyl laterally across said spherical peripheral su rface,-saidv central nosa-arti cam element including .a grooved spherical element .l consisting `of two separable spherical sections, 4theinside-faces of which terminate in inwardly. directed cylindrical projections, and anti-friction-bearingsclamped between said cylindrical projections and interposed between said impeller and -said camrportion.

17. In fa sphericalmachine, a casing having va.

chamber-and to cause its side walls and the sides ofthe chamber to move relatively over one another and the spherical `outside Asurface of the impeller to oscillate relatively laterally across saidnspherical peripheral surface, said impeller member consisting-of twojside annular vplate members -extending from said spherical peripheral surfaceto said central `cam element,y `a central cylindrical member extending between said plate members and extending circularly around said central; cam element vand .peripheral .spherical plate meansv extending between the periphery of said sideplate members.

18 .`In aspherical machine,- a casing having a duid-'receivingchamberwith spaced sides and spherical peripheral surfaces, Vsaid chamber being provided with inlet and. outlet ports, and being-'provided with a central shaft connection, an impeller member located obliquely across said chamber to form a plurality of reversely congruent semi-circular wedge-like actuating compartmentsthe outside portion of said impeller having Ya spherical surface located in close adjuxtapqsition` to the spherical surface of the chamber, a transverse separating means between said inlet and outlet ports received vin a slot in said impeller, said shaft carrying .a central cam element cooperating with said impeller to hold `it `in relatively -koblique .position within said chamber and to cause its side walls and the sides of ,the chamber to move relatively over one another and the spherical outside surface of the impeller to oscillate relatively laterally across said spherical peripheral surface, said separating means consisting of a central fixed cone extending between and ybearing upon-the walls of said slot and said impeller and transverse Wall members,V extending from the sides of said `cone to the spaced sides of said chamber.

ALOIS WICHA. 

